18197+0207 AG  219AB

 
 
18h 19m 40.74s +02 07' 04.4" P.A. 34 sep 8.7 mag 10.08,10.80 Sp K0
 
 
Coord 2000
18197+0207
Discov num
AG  219
Comp
AB
Coord arcsec 2000
18 19 40.74 +02 07 04.4
Date first
1902
Date last
2011
Obs
18
Pa first
36
Pa last
34
P.A. Now (θ)
34°
Sep first
7.3
Sep last
8.7
Sep. Now (ρ)
8.7"
Mag pri
10.08
Mag sec
10.80
delta mag (ΔM)
0.72
Spectral class
K0 (yellow-orange)
Pri motion ra
-049
Sec motion ra
-042
Pri motion dec
+058
Sec motion dec
+057
Notes
rPM=0.093 (< 0.3, Physical double)
This double is physical.
 
 
18197+0207 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 18197+0207 AG 219 AB 1902 2011 18 34 8.7 10.08 10.80 0.72 <===
Show 18197+0207 AG 219 AC 1922 2011 3 246 5.8 10.08 12.50 2.42
Show 18197+0207 AG 219 AD 1922 2011 4 251 56.9 10.08 13.30 3.22
Quadruple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
34.1
Precise sep
8.71
Constellation
Ophiuchus
Tycho2
0436-03032-1
HD
168458
last precise pa
34.1
last precise sep
8.71
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18197+0207 AG 219 AB 2007 15 34 8.7 10.08 11.20 K0 D 181940.74+020704.4
18197+0207 AG 219 AB 2011 17 34 8.7 10.08 11.20 K0 D 181940.74+020704.4

If you need more information about this double, apply for a data request form to the WDS.